Over that last 50 years Los Angeles has made vast improvements in air pollution. That has happened even as Los Angeles more than tripled in population. Even with those improvements, Los Angeles still has difficulties meeting ozone and particulate standards.

The US is putting pressure on country’s like China and India to reduce pollution, even as they continue to struggle to build their economies. The US has be accused of not allowing developing country’s to have the same opportunity to meet environmental challenges, over as long a period of time, as the US itself took. Of course, the global concern over air pollution is different today than it was 50 years ago. Discuss the issues of fairness? Some cities, like Beijing are much more polluted than any US city ever was. Air quality is actually dangerous. Discuss the conflict between development and pollution.